1. Vascular Access Center (Grupo de Estudos Vasculares); Porto Portugal
2. Angiology and Vascular Surgery Department; Centro Hospitalar do Porto; Porto Portugal
3. Nursing School of Porto; Porto Portugal
4. CINTESIS-Center for Health Technology and Services Research Faculty of Medicine; Porto University; Porto Portugal
5. School of Economics and LIAAD-INESC Porto LA; University of Porto; Porto Portugal